George westinghouse



G1 WESTINGHOUSE.

Grain Winnower. I ,No. 34,605. Patented March 4,1862

N. PEIEHS Pnmumu pner. Washington. 0. c.

UNITED STATES PATENT OFFICE.

GEORGE WESTINGHOUSE, OF SOHEN EOTADY, NEW YORK.

IMPROVEMENT IN GRAINAND SEED WINNOWERS Specification forming part ofLetters Patent No. 34,605, dated March 4, 1862.

To all whom it .may concern:

Be it known that I, GEORGE WESTINGHOUSE, of Schenectady,in the county ofSchenectady and State of New York,have invented a new and Improved Grainand Seed Fanning or Winnowing Machine; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure 1 is a side sectional View of my invention, taken inthe line a: a, Fig. 2; Fig. 2, a plan or top view of same; Fig. 3, adetached perspective view of the tail-screen pertaining to same.

Similar letters of reference indicate corre sponding parts in theseveral figures.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents the frame of the machine, which may be of rectangular form,and which is provided with a fan-box B at one end, in which a rotary fan0 is placed. The shaft D of the fan 0 has a pinion E at one end of it,and into this pinion a toothed wheel F gears, said wheel being on ashaft G, which is on the top of the frame A.

H represents the shoe, which may be con structed in the usual way, witha main screen I in its upper part and tail-screen J at its outer enddirectly in line with screen I and adjoining it. The shoe H is suspendedin the frame A by parallel rods Ktwo at each sidesaid rods beingattached to the frame A and to the shoe H by pivots a.

The shoe has a trough L placed transversely in its bottom to dischargethe sound grain at one side, and an inclined board I) beneath screen Iconducts the grain which passes through the screen I to the trough. (SeeFig. 1.) M is a trough, which is placed transversely at the bottom ofthe shoe near its outer end. This trough receives the screenings fromthe tail-screen J, which is placed in an adjustable box N, fitted in theouter end of shoe H, and secured therein by a rod 0, with ascreen or nutat one end, as shown at c, said rod 0 passing through the sides of theshoe the box N may be adjusted when the shoe H is in operation.

The shoe H is operated from the fan-shaft D by means of twoconnecting-rods PP, which are attached to cranks Q on the fan-shaft D.The shoe H is considerably above the fanshaft D, and has such a relativeposition therewith that the cranks Q and rods P will vibrate the shoe Hin an oblique direction say at an angle of about forty-five degrees. Byoperating the shoe H in this direction the straws in the grain will notcatch in the screen I and pass through it, as is the case when ahorizontal reciprocating motion is given it, and the former or obliquemovement of the shoe does not require to be so great as a horizontalmovement in order to perform the necessary work.

The fan 0 has one of its wings or blades d made heavier than the otherthree, in order to counterpoise the shoe H and its screens.

This heavy blade or wing is directly or nearly in line with the cranksQ,but at the opposite side of the fan-shaft D. This counterpoising ofthe shoe H serves to equalize its motion and insure an easy and smoothworking of the machine.

I am aware that straw-carriers in thrashingmachines have been hungbetween swinging arms, and this I do not claim, broadly; but,

Having. thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

The arrangement together of the swinging shoe H, when operating asspecified, fan 0, and adj ustable box N, as herein shown and described,for the purpose set forth.

GEORGE WESTINGHOUSE.

Witnesses: 7

G. Y. VAN DE BOGERT, N. VAN DEBOGERT.

